界面组织和由表皮-癌症单层相互作用产生的力量.
Liu-Yuan Guan1, Shao-Zhen Lin1, Peng-Cheng Chen1
1Institute of Biomechanics and Medical Engineering, Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China.
ACS nano
|December 13, 2023
概括
表皮细胞形成复杂的结构,在物理上对抗癌细胞,防止瘤入侵. 这涉及机械力和特定的细胞粘附分子,突出显示它们在组织完整性中的作用.
科学领域:
- 细胞生物学 细胞生物学
- 生物物理学的生物物理.
- 癌症研究 癌症研究
背景情况:
- 表皮细胞和癌细胞之间的界面相互作用对于瘤发育和转移至关重要.
- 在组织层面了解这些相互作用对于开发有效的癌症疗法至关重要.
研究的目的:
- 研究非瘤源性上皮细胞 (MCF10A) 和乳腺癌细胞 (MDA-MB-231) 之间的组织层面的界面相互作用.
- 阐明机械力和细胞粘附分子在调节这些相互作用和防止癌细胞入侵中的作用.
主要方法:
- 对MCF10A和MDA-MB-231细胞进行单层对抗试验.
- 纳米机械建模结合了原子力显微镜和有限元素模拟.
- 使用光纳米珠跟踪基质移位.
- 研究E-cadherin和P-cadherin在上皮细胞组织中的作用.
主要成果:
- 表皮细胞形成分层的指形结构,穿透癌细胞单层.
- 由上皮细胞产生的机械力量导致癌细胞挤压,挤出和p53亡信号.
- E-cadherin 影响界面几何和力局部化,而 P-cadherin 维持长距离的力传输.
结论:
- 表皮细胞的协作分子和机械行为对于防止瘤入侵至关重要.
- 表皮细胞结构和力量作为对癌症进展的物理屏障.
- 对于E-cadherin和P-cadherin在调节上皮质与癌症接口中的不同作用提供了治疗点.
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